Download Plant and animal keywords

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PLANT AND ANIMAL BEHAVIOUR KEY WORDS
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Definition
Orientation response in which the strength of the stimulus
determines the rate of linear movement
Word
Answer
Orthokinesis
Area that is defended by an animal
Territory
External environmental cue by which an internal clock is set.
Zeitgeber
Having an internal origin, independent of external stimuli.
Endogenous
Rhythm is free-running when it is proceeding independently of
external changes.
Free-running
A rhythm of about 1 year
Circaannual
Active at dawn and dusk
Crepuscular
Taxis in which orientation depends on receptors alternately
comparing the intensity of the stimulus as the body moves from side
to side
Growth of a plant towards or away from light
Klinotaxis
Phototropism
Inhibition of the growth of bacteria by the production of growthinhibiting substances (antibiotics) by fungi
Antibiosis
Active at night.
Nocturnal
Process by which an internal clock becomes reset by rhythmic
environmental influences.
Growth hormone which plays an essential part in tropisms in stems
and leaves, and also in numerous growth processes.
Internal timing system that continues without external clues, and
control (to some extent) the timing of activities of plants and
animals
Entrainment
Auxin
Biological clocks
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Definition
The ability of animals to find and return to the home site.
An interspecific relationship where one organism benefits, but the
other is unaffected
Word
Answer
Homing
Commensalism
A plant that flowers independently of the day length or seasons
Day neutral plant
The response of plants to length of nights
Photoperiodism
Driven by external stimuli (environmental cues).
Exogenous
Plant growth substance that acts as a powerful growth inhibitor &
plays an important part in maintaining dormancy in seeds and
winter buds.
Abscisic acid
Ability of an animal to find its way home over unfamiliar territory.
Homing
A plant pigment that controls the photoperiodic response.
A growth response towards or away from an environmental stimulus
coming from one direction.
Orientation response in which the strength of the stimulus
determines the rate of turning.
Active during daylight.
When the onset of the period of the rhythm is changed (either
earlier or later).
A rhythm of about 12.5 hours
Phytochrome
Tropism
Klinokinesis
Diurnal
Phase-shift
Circatidal
The responses of plants to diffuse stimuli that do not come from any
particular direction.
Nastic response
Non-directional response of an organism. Do not use a +ve or –ve in
description
Kinesis
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Definition
An area that an animal uses for food, but is not defended.
A plant that flowers with increasing day length.
To change the start times of a rhythm, but not its period.
Anything that causes an organism to react.
An interspecific relationship where one individual is benefited and
the other host is harmed.
Rhythm with a period of about a day when under constant
environmental conditions.
An interspecific relationship where one individual (predator) benefits
by hunting and killing the prey
A plant that flowers in short days- long nights
Orientation movement of an animal in which the direction of
movement depends on the direction of the stimulus.
Word
Answer
Home range
Long-day plant
Phase shift
Stimulus
Parasitism
Circadian rhythm
Predation
Short-day plant
Taxis
Mass movement of members of a species, usually at regular
intervals, often over long distances, and in which the “urge” for the
movement arises from internal stimuli.
Migration
When animals are ranked.
Hierarchy
The length of a rhythm, how long it takes to repeat.
Period
Where several poisonous species have similar colourations
Mullerian
mimicry
An interspecific relationship where both benefit
Mutualism
A biological clock that enables a migrating bird or insect to fly using
the sun and continuously adjusting its angle to the sun while flying.
Sun compass